import {
	attachments,
	db,
	ticketMessages,
	tickets,
	userPreferences,
} from "@/database";
import { getPublicUrl, s3 } from "@/utils/s3";
import {
	AttachmentBuilder,
	type Client,
	Events,
	type GuildMember,
	type Message,
} from "discord.js";
import { and, eq } from "drizzle-orm";
import { nanoid } from "nanoid";
import Uwuifier from "uwuifier";

import config from "@/config";
import { loggers } from "@/utils/logging";
import { hasManagerPermissions } from "@/utils/permissions";
const logger = loggers.events.child({ name: "messageCreate" });

type UploadStatus = "queued" | "uploading" | "done" | "failed";

async function handleUwuification(message: Message): Promise<boolean> {
	if (message.author.bot) return false;
	if (!message.content && message.attachments.size === 0) return false;

	const userPref = db
		.select()
		.from(userPreferences)
		.where(eq(userPreferences.userId, message.author.id))
		.get();

	if (userPref?.uwuifyMessages !== "enabled") return false;

	const uwuifier = new Uwuifier();
	const uwuifiedContent = message.content
		? uwuifier.uwuifySentence(message.content)
		: "";

	const blacklistedWords = [
		"twerks",
		"sees bulge",
		"notices buldge",
		"starts twerking",
	];

	const finalText = blacklistedWords.reduce((acc, word) => {
		return acc.replace(new RegExp(word, "gi"), "----");
	}, uwuifiedContent);

	try {
		let replyReference = null;
		if (message.reference?.messageId) {
			try {
				replyReference = await message.channel.messages.fetch(
					message.reference.messageId,
				);
			} catch (error) {
				logger.warn(
					error,
					"Failed to fetch referenced message for uwuified reply",
				);
			}
		}

		const files: AttachmentBuilder[] = [];
		for (const attachment of message.attachments.values()) {
			try {
				const resp = await fetch(attachment.url);
				if (!resp.ok) {
					logger.warn(
						`Failed to fetch attachment ${attachment.name}, status ${resp.status}`,
					);
					continue;
				}

				const buffer = await resp.arrayBuffer();
				const attachmentBuilder = new AttachmentBuilder(Buffer.from(buffer), {
					name: attachment.name,
				});
				files.push(attachmentBuilder);
			} catch (error) {
				logger.error(error, `Failed to download attachment ${attachment.name}`);
			}
		}

		await message.delete();

		const contentParts = [
			`**<@${message.author.id}>**: ${finalText || "(no text)"}`,
		];

		if (message.channel.isSendable()) {
			const sendOptions: {
				content: string;
				files?: AttachmentBuilder[];
				reply?: { messageReference: string };
			} = {
				content: contentParts.join("\n"),
			};

			if (files.length > 0) {
				sendOptions.files = files;
			}

			if (replyReference) {
				sendOptions.reply = {
					messageReference: replyReference.id,
				};
			}

			await message.channel.send({
				allowedMentions: {
					users: [],
				},
				...sendOptions,
			});
		}

		return true;
	} catch (error) {
		logger.error(error, "Failed to uwuify and resend message");
		return false;
	}
}

export default {
	event: Events.MessageCreate,
	async execute(client: Client, message: Message) {
		if (!client.user) return;

		const triggers = ["grok is this true", "grok is this false "];
		if (
			message.channel.isSendable() &&
			triggers.some((trigger) =>
				message.content.toLowerCase().includes(trigger),
			)
		) {
			const chance = Math.random() * 100;
			if (chance < 25 || message.author.id === "470956810866655242") {
				await message.channel.send("gorque* 🇫🇷🥖");
				message.channel.send("but oui");
			} else {
				message.channel.send("yeh");
			}
		}

		if (
			message.channel.isSendable() &&
			message.content.includes("gorque is this true")
		) {
			message.channel.send("oui 🇫🇷🥖");
		}

		await handleUwuification(message);

		const ticket = db
			.select()
			.from(tickets)
			.where(
				and(
					eq(tickets.channelId, message.channelId),
					eq(tickets.guildId, message.guildId ?? ""),
				),
			)
			.get();

		if (!ticket) return;

		try {
			const isSystem = message.author.id === client.user.id;
			const isModerator = await hasManagerPermissions(
				message?.member as GuildMember,
			);
			const authorType = isSystem ? "system" : isModerator ? "staff" : "user";

			const anonymisedContent = message.content.replace(
				new RegExp(ticket.authorId, "g"),
				"-".repeat(ticket.authorId.length),
			);

			const savedMessage = db
				.insert(ticketMessages)
				.values({
					ticketId: ticket.id,
					authorId: message.author.id,
					authorType: authorType,
					content: anonymisedContent,
					createdAt: message.createdAt,
				})
				.returning()
				.get();

			if (message.attachments.size > 0) {
				const attachmentsArray = Array.from(message.attachments.values());
				const total = attachmentsArray.length;

				const statusList: {
					attachment: (typeof attachmentsArray)[number];
					status: UploadStatus;
					url?: string;
				}[] = attachmentsArray.map((att) => ({
					attachment: att,
					status: "queued",
				}));

				const formatSize = (size: number) => {
					if (size < 1024) return `${size} B`;
					if (size < 1024 * 1024) return `${(size / 1024).toFixed(2)} KB`;
					if (size < 1024 * 1024 * 1024)
						return `${(size / (1024 * 1024)).toFixed(2)} MB`;
					return `${(size / (1024 * 1024 * 1024)).toFixed(2)} GB`;
				};

				const renderBoard = () => {
					const list = statusList
						.map((item) => {
							const name = item.attachment.name ?? "unknown";
							const emoji = (() => {
								switch (item.status) {
									case "done":
										return ":white_check_mark:";
									case "uploading":
										return ":hourglass_flowing_sand:";
									case "queued":
										return ":black_large_square:";
									case "failed":
										return ":x:";
								}
							})();

							if (item.status === "done" && item.url)
								return `${emoji} [${name}](<${item.url}>) (${formatSize(item.attachment.size)})`;
							return `${emoji} ${name} (${formatSize(item.attachment.size)})`;
						})
						.join("\n");

					return list;
				};

				let statusMessage: Message | null = null;
				if (message.channel.isSendable()) {
					statusMessage = await message.reply({
						content: `**Attachment upload status**\n${renderBoard()}`,
					});
				}

				for (let i = 0; i < total; i++) {
					const { attachment } = statusList[i];
					if (!statusMessage) continue;

					try {
						statusList[i].status = "uploading";
						await statusMessage.edit(
							`**Attachment upload status**\n${renderBoard()}`,
						);

						const key = `${ticket.anonymousId}/${savedMessage.id}/${nanoid(
							8,
						)}_${attachment.name}`;
						const file = s3.file(key);

						const resp = await fetch(attachment.url);
						const blob = await resp.blob();
						await file.write(blob);

						const publicUrl = getPublicUrl(key);

						await db.insert(attachments).values({
							id: attachment.id,
							ownerType: "ticket_message",
							ownerId: savedMessage.id,
							fileName: attachment.name,
							contentType: attachment.contentType ?? "application/octet-stream",
							size: attachment.size,
							bucket: config.s3.bucket,
							key: key,
							url: publicUrl,
						});

						statusList[i].status = "done";
						statusList[i].url = publicUrl;
						await statusMessage.edit(
							`**Attachment upload status**\n${renderBoard()}`,
						);
					} catch (error) {
						logger.error(
							error,
							`Failed to upload attachment ${attachment.name}`,
						);
						statusList[i].status = "failed";
						await statusMessage.edit(
							`**Attachment upload status**\n${renderBoard()}`,
						);
					}
				}
			}
		} catch (error) {
			logger.error(error, "Failed to log ticket message");
		}
	},
};